The bathroom on a private jet is called a lavatory. Most private jets do have a bathroom but are there for an in case of emergency situation. Most small aircraft such as turboprops, very-light jets, and light jets are only able to fly about 3 hours before they need fuel making the need for a bathroom less. On bigger stand-up cabin aircraft large enclosed bathrooms are a necessity. If you aren’t sure about the plane you want to charter, ask your private charter sales executive or submit a question here and we will be happy to inform you about the size of the bathroom.